Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 8

Waning Crescent 4%

03:53

18:38

15 Bad
16 Bad
17 Bad
18 OK
19 Good
20 Good
21 OK
22 Good
23 OK
00 Bad
01 OK
02 OK
03 OK
04 OK
05 Good
06 Good
07 Good
08 OK
09 OK
10 OK
11 OK
12 OK
13 Bad
14 Bad

Sun - Rise: 06:24, Set: 19:32, Transit: 12:57. Moon - Rise: 03:53, Set: 18:38. Civil Dark: 20:07 - 05:49. Nautical Dark: 20:50 - 05:06. Astro Dark: 21:37 - 04:20

Total Clouds (% Sky Obscured)

72
67
66
28
12
4
18
11
27
46
41
43
40
19
4
13
1
19
17
21
39
33
64
87

Low Clouds (% Sky Obscured)

20
29
23
17
11
3
17
11
27
46
41
43
40
19
4
13
1
18
16
21
36
33
53
64

Medium Clouds (% Sky Obscured)

66
23
11
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
5
11

High Clouds (% Sky Obscured)

25
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

9
9
5
0
0
0
0
0
0
7
3
0
4
1
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
14
15
16
16
15
14
14
14
14
14
14
13
12
10
10
10
11
14
14
13
12
11
11

Chance of Frost

Temperature (°C)

17
19
18
17
16
14
13
13
12
12
12
11
11
11
11
10
10
12
13
15
16
17
18
18

Feels Like (°C)

13
13
14
12
13
11
10
10
9
9
7
6
7
6
8
8
7
9
11
12
13
14
15
15

Dew Point (°C)

6
7
6
8
10
9
9
8
7
7
7
4
6
5
6
6
6
6
6
6
6
6
6
5

Relative Humidity (%)

47
45
47
56
66
70
74
72
70
71
71
59
68
68
74
76
74
70
61
55
51
47
45
42

Pressure (mb)

1005
1005
1005
1005
1005
1006
1007
1007
1008
1008
1008
1009
1009
1010
1011
1011
1012
1013
1014
1015
1015
1016
1016
1016

Ozone (du)

341
348
341
340
343
347
352
356
359
363
363
362
361
359
345
340
339
339
339
337
337
336
335
338

Wednesday 9

Waning Crescent 1%

05:21

18:53

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
22 Bad
23 OK
00 OK
01 Good
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:26, Set: 19:29, Transit: 12:56. Moon - Rise: 05:21, Set: 18:53. Civil Dark: 20:04 - 05:51. Nautical Dark: 20:47 - 05:08. Astro Dark: 21:33 - 04:22

Total Clouds (% Sky Obscured)

84
59
67
75
83
57
48
49
48
21
9
62
100
100
100
100
100
100
100
97
79
71
80
87

Low Clouds (% Sky Obscured)

59
37
48
72
78
57
48
49
48
20
0
0
0
0
0
10
0
0
0
0
6
8
25
32

Medium Clouds (% Sky Obscured)

10
7
7
6
9
0
0
0
0
0
0
0
0
0
0
0
0
99
100
19
14
13
55
28

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
9
62
100
100
100
100
100
100
93
82
38
0
0
7

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
8
7
4
4
5
3
2
4
5
6
5
4
4
3
3
4
4
6
7
10
12
12
12

Chance of Frost

Temperature (°C)

19
19
19
18
17
15
14
13
12
11
10
9
9
8
8
8
7
9
11
14
16
17
18
19

Feels Like (°C)

16
16
16
17
16
13
12
14
12
10
10
9
7
7
6
6
5
7
9
11
13
13
16
16

Dew Point (°C)

5
5
7
9
10
9
7
8
8
7
6
6
5
5
4
4
3
4
5
6
6
5
6
7

Relative Humidity (%)

40
39
47
52
61
65
63
69
72
76
77
77
78
79
78
75
74
72
66
58
49
45
45
44

Pressure (mb)

1016
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1017
1018
1017
1017
1017
1017
1017
1017
1017
1017
1016
1015

Ozone (du)

339
338
336
331
331
328
325
323
322
319
317
317
315
314
312
308
307
309
310
311
313
316
312
310

Thursday 10

Waning Crescent 0%

06:46

19:05

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
08 OK
09 OK
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:28, Set: 19:27, Transit: 12:56. Moon - Rise: 06:46, Set: 19:05. Civil Dark: 20:02 - 05:53. Nautical Dark: 20:44 - 05:10. Astro Dark: 21:30 - 04:25

Total Clouds (% Sky Obscured)

92
100
100
100
100
100
100
100
100
93
98
87
66
57
56
50
34
32
41
56
77
82
75
65

Low Clouds (% Sky Obscured)

45
6
42
35
66
50
51
100
100
93
97
77
66
41
33
27
19
24
32
40
42
58
59
54

Medium Clouds (% Sky Obscured)

88
17
11
96
82
89
100
59
5
5
3
2
0
1
2
4
1
0
0
0
6
6
5
4

High Clouds (% Sky Obscured)

5
100
100
100
100
100
100
70
60
0
0
0
0
0
0
0
0
0
0
16
50
45
40
30

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
3
9
11
25
95
95
33
25
9
6
1
3
0
0
0
0
0
0
0
0
4
2

Precipitation Amount (mm)

0
0
0
0
0
0
0.6
0.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

14
14
13
11
12
11
11
13
13
14
13
12
12
10
8
8
8
9
11
12
11
11
11
11

Chance of Frost

Temperature (°C)

19
20
20
19
18
17
17
15
14
14
14
14
14
14
14
14
14
15
16
18
19
19
20
20

Feels Like (°C)

15
16
15
16
14
14
13
13
11
11
12
12
13
13
15
14
14
15
15
16
16
15
16
16

Dew Point (°C)

7
7
7
8
9
9
10
13
11
10
11
11
12
13
14
13
13
13
12
11
10
10
10
11

Relative Humidity (%)

43
43
44
46
52
57
63
83
80
75
82
82
87
90
96
95
93
86
73
66
58
55
54
55

Pressure (mb)

1014
1014
1013
1013
1012
1013
1012
1013
1012
1012
1012
1012
1012
1012
1013
1013
1014
1015
1016
1017
1017
1018
1018
1019

Ozone (du)

308
304
302
302
307
310
314
315
316
319
319
321
318
318
318
320
321
322
321
318
316
315
315
314

Friday 11

New Moon 2%

08:09

19:15

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
21 OK
22 Bad
23 Bad
00 Bad
01 OK
02 Bad
03 OK
04 OK
05 OK
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:29, Set: 19:24, Transit: 12:56. Moon - Rise: 08:09, Set: 19:15. Civil Dark: 19:59 - 05:54. Nautical Dark: 20:42 - 05:12. Astro Dark: 21:27 - 04:27

Total Clouds (% Sky Obscured)

62
67
72
57
49
31
48
55
60
69
42
49
29
42
44
49
58
67
77
71
72
81
62
49

Low Clouds (% Sky Obscured)

43
37
44
55
49
31
26
30
34
34
33
28
23
22
21
19
12
6
0
6
19
53
36
39

Medium Clouds (% Sky Obscured)

3
4
2
0
0
0
0
0
0
0
0
0
4
0
5
4
9
67
77
64
68
81
62
5

High Clouds (% Sky Obscured)

40
40
35
2
0
0
48
55
60
69
14
49
6
42
44
49
58
67
41
34
29
20
16
10

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
11
9
8
9
7
6
4
3
4
5
4
4
4
4
4
4
5
7
9
11
13
14
15

Chance of Frost

Temperature (°C)

20
20
20
19
18
16
15
13
12
12
11
11
10
10
9
9
9
11
13
15
17
19
20
21

Feels Like (°C)

17
16
17
16
16
14
13
11
10
9
9
11
8
9
7
7
6
8
10
12
13
15
16
16

Dew Point (°C)

11
9
7
7
8
8
8
7
7
7
6
7
6
6
6
6
5
6
6
7
7
7
8
6

Relative Humidity (%)

56
46
43
46
52
59
63
65
70
71
72
76
77
78
78
80
78
73
63
55
51
47
45
38

Pressure (mb)

1019
1020
1020
1021
1021
1022
1023
1023
1023
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1021
1021
1020

Ozone (du)

316
320
321
319
316
315
308
304
303
302
300
297
295
297
298
298
296
295
295
296
296
297
298
300

Saturday 12

Waxing Crescent 7%

09:30

19:25

15 OK
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:31, Set: 19:22, Transit: 12:55. Moon - Rise: 09:30, Set: 19:25. Civil Dark: 19:57 - 05:56. Nautical Dark: 20:39 - 05:14. Astro Dark: 21:24 - 04:29

Total Clouds (% Sky Obscured)

29
63
80
100
95
92
86
89
91
94
95
96
97
96
94
93
99
99
100
87
74
61
72
82

Low Clouds (% Sky Obscured)

19
36
38
38
26
23
15
26
30
50
59
68
44
63
60
40
68
84
95
82
67
55
63
75

Medium Clouds (% Sky Obscured)

0
1
2
83
5
5
16
9
91
24
95
96
20
13
7
16
13
9
5
0
0
1
1
1

High Clouds (% Sky Obscured)

7
52
27
98
95
90
78
74
68
67
67
71
73
55
38
20
97
96
95
70
45
27
16
9

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
2
8
7
1
16
17
1
1
4
22
33
29
34
41
32
14
10
4
11
17
15
14
15

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
15
13
13
9
9
11
12
12
13
13
12
11
10
10
10
10
9
10
10
11
11
11
10

Chance of Frost

Temperature (°C)

21
22
21
20
19
19
18
17
17
17
17
17
16
16
16
16
16
15
16
17
18
20
21
22

Feels Like (°C)

17
19
18
17
18
18
16
15
15
14
14
15
15
15
15
14
14
12
13
13
14
15
17
22

Dew Point (°C)

8
9
11
12
15
15
14
13
14
14
13
13
14
14
14
13
14
11
11
10
10
11
11
12

Relative Humidity (%)

42
44
51
57
75
77
76
78
81
82
79
81
86
89
87
82
86
78
72
66
60
56
52
54

Pressure (mb)

1019
1019
1019
1018
1018
1019
1019
1018
1018
1018
1018
1018
1018
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

300
300
300
298
299
298
297
299
299
300
300
301
302
305
306
306
305
308
310
313
310
308
305
302

Sunday 13

Waxing Crescent 6%

10:50

19:37

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 OK
10 OK
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:33, Set: 19:20, Transit: 12:55. Moon - Rise: 10:50, Set: 19:37. Civil Dark: 19:54 - 05:58. Nautical Dark: 20:36 - 05:16. Astro Dark: 21:21 - 04:31

Total Clouds (% Sky Obscured)

92
94
97
100
100
100
100
95
90
88
92
92
88
76
71
65
55
45
36
35
46
49
55
61

Low Clouds (% Sky Obscured)

88
78
70
64
74
83
87
79
72
66
52
38
26
26
29
31
25
20
14
20
26
41
49
56

Medium Clouds (% Sky Obscured)

1
2
2
2
3
4
2
3
4
5
5
5
8
8
8
8
6
6
5
9
16
27
30
32

High Clouds (% Sky Obscured)

1
14
27
36
50
67
82
72
60
46
55
55
69
68
54
53
43
34
23
16
8
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

11
8
8
7
3
2
0
3
2
2
12
9
5
8
2
0
3
14
7
8
6
1
2
6

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
9
7
8
9
9
8
7
5
5
7
7
7
7
8
8
8
9
10
11
11
12
12
12

Chance of Frost

Temperature (°C)

22
22
21
20
19
19
18
18
18
18
17
17
17
17
16
16
16
17
18
19
21
22
23
23

Feels Like (°C)

22
21
21
22
22
17
17
17
17
17
18
17
18
18
17
18
18
17
17
17
17
17
18
24

Dew Point (°C)

13
13
14
16
17
16
16
15
15
14
14
14
14
13
13
14
14
13
12
12
11
10
10
10

Relative Humidity (%)

56
58
66
75
85
85
85
83
82
81
81
81
81
79
82
83
85
76
68
61
54
47
43
43

Pressure (mb)

1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019

Ozone (du)

300
297
297
297
297
294
291
289
286
283
280
279
278
276
276
276
275
276
277
277
277
277
277
277

Monday 14

Waxing Crescent 13%

12:10

19:50

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 OK

Sun - Rise: 06:34, Set: 19:17, Transit: 12:55. Moon - Rise: 12:10, Set: 19:50. Civil Dark: 19:52 - 06:00. Nautical Dark: 20:34 - 05:18. Astro Dark: 21:19 - 04:34

Total Clouds (% Sky Obscured)

67
65
59
54
64
76
87
88
87
90
90
90
95
92
83
80
64
55
43
36
33
33

Low Clouds (% Sky Obscured)

58
53
43
36
37
38
41
48
54
64
52
46
38
28
18
11
15
15
18
17
16
19

Medium Clouds (% Sky Obscured)

31
26
22
18
23
29
30
32
29
30
35
30
20
31
38
49
36
22
10
6
3
0

High Clouds (% Sky Obscured)

0
2
5
6
21
36
51
34
17
0
33
67
95
92
83
80
57
30
2
1
1
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

5
4
3
2
1
1
1
8
18
24
40
40
30
57
80
95
95
83
48
43
38
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.8
0.8
0.6
0.2
0
0
0

Wind Speed/Direction (mph)

12
13
11
10
9
8
8
7
8
8
9
9
9
9
9
9
10
12
14
16
17
17

Chance of Frost

Temperature (°C)

24
24
23
23
23
22
21
20
19
19
18
18
18
17
17
17
17
18
18
18
19
19

Feels Like (°C)

23
22
23
23
24
21
22
22
22
21
20
19
19
19
19
18
17
17
16
16
16
15

Dew Point (°C)

11
11
12
13
14
14
14
14
14
14
15
15
15
15
15
15
15
14
13
12
11
10

Relative Humidity (%)

43
44
49
53
57
61
65
68
72
75
78
81
86
89
89
89
89
79
72
65
59
54

Pressure (mb)

1019
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1016
1016
1016
1015
1015
1015
1016
1016
1016
1016

Ozone (du)

277
277
277
278
278
278
279
279
279
279
278
278
278
277
281
284
287
286
285
284
284
284

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 08/09/26 15:02:50. Forecast: 08/09/26 to 14/09/26. Timezone: UTC+1.00